1881.] of some Experiments with Whirled Anemometers. Ill 



Adie's Anemometer. 



Diameter of Arms between Centres of Cups 13"4 inches ; Diameter of 

 Cups 2*5 inches. Fixed to Machine at 20'7 feet from the Axis of 

 Revolution. 



Group 

 and No. 



T. 





N. 



S. 



Y. 



W. 



W2 



2V 



300t> 

 Vi * 



300u 



V 



H — 



1 

 2 

 3 

 4 

 5 

 6 

 7 

 8 



17 



15* 



22* 



19 



16 



18 



18 



18 



300 

 300 

 300 

 300 

 300 

 300 

 301 

 300 



3860 

 3650 

 3940 

 3760 

 3780 

 3890 

 3980 

 3940 



1 -o 



1 4 

 1 -8 

 0-7 

 -9 

 0-9 

 0-7 

 0-8 



26-16 

 28-61 

 19-70 



23 -33 

 27 -71 



24 -63 

 24 -72 

 24 -63 



3 53 

 5-45 

 4-80 

 2 21 

 3-37 

 2-67 

 2 33 

 2 -67 



0-24 

 0-52 

 0-58 



o-io 



-20 

 14 



o-ii 



0-14 



95- 2 

 89 -5 

 96 -7 

 93-1 

 93 -5 



96- 4 

 98-6 



97- 8 



94 -4 

 87 -9 

 94 -0 

 92 -7 

 92 -8 

 96 -0 

 98 -2 

 97-3 



Mean . . . 











24-94 



3 -38 



0-25 



95-1 



94-2 



H + 

 1 



2 

 3 

 4 

 5 

 6 

 7 



17 

 17 

 19 

 16 

 19 

 17 

 19 



300 

 300 

 300 

 300 

 300 

 301 

 300 



3240 

 3330 

 3760 

 3780 

 3060 

 3120 

 3160 



1 -1 

 1-1 



0-7 

 0-9 

 0-8 

 0-8 

 0-8 



26 -08 



26 -08 

 23 33 



27 -71 

 23-33 

 26-17 

 23 33 



3 -89 

 3-89 

 2-21 

 3 -37 

 2-53 

 2-82 

 2 53 



-29 

 0-29 

 10 

 0-20 

 0-14 

 15 

 0-14 



94-9 

 97 3 

 109 -2 

 109-6 



90 -3 



91 -6 

 93 -0 



93 -9 

 96-3 

 108-7 

 108 -8 

 89 -8 



91 -1 



92 -5 



Mean . . . 











25-15 



3-03 



0-19 



98-0 



97 3 



1V1 — 



1 



2 

 3 



4 



38 

 38 

 36 

 35 



300 

 300 

 300 

 300 



3620 

 3500 

 3910 

 3430 



2-0 

 1 -6 

 0-8 

 1 



11 -67 



11 67 



12 -26 

 12 67 



3-16 

 2-53 

 1 33 

 1-71 



0-43 

 -43 

 0-07 

 -07 



87-7 

 84-7 

 97 -5 

 84-1 



84 -9 

 81-7 

 96 -9 

 83-7 



Mean. . . 











12 07 



2-18 



0-25 



88-5 



86-8 



M + 

 1 



2 

 3 



4 

 5 



31 



34 

 34 

 36 

 36 



300 

 300 

 300 

 300 

 300 



3250 

 2920 

 2940 

 2760 

 2780 



1-6 

 1 7 

 1-9 

 17 

 1 3 



14-30 

 13-04 

 13 04 

 12 -31 

 12-31 



3 10 

 3-00 

 3-06 

 2 -83 

 2-17 



0-34 

 35 

 0-36 

 33 

 0-19 



94-3 

 85 -7 

 86-1 

 81 -4 

 65-5 



93 -7 

 85-5 

 83 1 

 79-2 

 64-7 



Mean . . . 











13-00 



2 83 



31 



82-6 



81 -0 



